Hi, Could anyone tell me how you drain the rear diff. on a Sierra Cossie? Cant find a drain plug anywhere! Also on a Sapphire 4x4 Cossie there is a switch under the spare wheel, what is that all about? Is there any clutch cable adjustment on the 3Dr, it has a new cable but too much play and cant find an adjuster underneath, gearbox end. Also does the Sapph. have a cable drive to the speedo or is it electronic (1991) Grateful for any help. Ta

 

drain the diff oil by removing the cover
the switch on the saff is a fuel pump cutout switch in the event of a accident is shuts the pump off
the clutch ajustment is done by a rachet and pawl system fitted to the clutch pedal and is automatic
and yes a 1991 saph has a cable speedo

 

Cheers Flan, I suppose that means a fresh diff gasket? Cant seem to find
the gearbox end of the speedo cable by looking underneath, any tips welcome.
Thanks for the help bud.

 

No gasket on the diff. You just use a small amount of gasket seal